Product comparison · 2 interface cards/adapters

StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car vs StarTech.com Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22

26specifications compared
21differ
5identical
22known for one product only

Key differences

Host interface
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:Mini PCI Express
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:PCIe
Output interface
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:Serial
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:M.2
Expansion card standard
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:PCIe 1.1
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:PCI 3.0
Mean time between failures (MTBF)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:222366 h
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:3336103 h
Certification
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:CE, FCC
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:CE, FCC, TAA, REACH
Chipset
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:Asix AX99100
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:ASMedia - ASM2824
Operating temperature (T-T)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:-10 - 80 °C
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:0 - 70 °C
Storage temperature (T-T)
- 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car:-20 - 100 °C
- Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22:-25 - 70 °C

Side by side

Differences highlightedShow differences only

Comparison of PEX2S953LP, PEX8M2E2
48 specifications	A StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car Model PEX2S953LP View product	B StarTech.com Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 22 Model PEX8M2E2 View product
Ports & interfaces3 differ
Host interfaceDiffers	Mini PCI Express	PCIe
Output interfaceDiffers	Serial	M.2
Expansion card standardDiffers	PCIe 1.1	PCI 3.0
Serial ports quantityKnown for one	2	Unknown — not stated by the source
Serial interface typeKnown for one	RS-232	Unknown — not stated by the source
Peripheral (Molex) power connectors (4-pin)Known for one	1	Unknown — not stated by the source
Number of M.2 (M) slotsKnown for one	Unknown — not stated by the source	2
SATA connector insertion cyclesKnown for one	Unknown — not stated by the source	60
Design2 differ
Internal	Yes	Yes
Mean time between failures (MTBF)Differs	222366 h	3336103 h
CertificationDiffers	CE, FCC	CE, FCC, TAA, REACH
Product colourKnown for one	Unknown — not stated by the source	Red
Hot-swapKnown for one	Unknown — not stated by the source	Yes
Features1 differ
ChipsetDiffers	Asix AX99100	ASMedia - ASM2824
Baud rateKnown for one	921.6 Kbit/s	Unknown — not stated by the source
FIFO (First In, First Out)Known for one	256 B	Unknown — not stated by the source
Data bitsKnown for one	5, 6, 7, 8, 9	Unknown — not stated by the source
Stop bitsKnown for one	1, 1.5, 2	Unknown — not stated by the source
Parity bitKnown for one	Even, Mark, No, Odd, Space	Unknown — not stated by the source
Flow Control typeKnown for one	No, RTS/CTS, XON/XOFF	Unknown — not stated by the source
Data transfer rate (max)Known for one	Unknown — not stated by the source	8 Gbit/s
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Operational conditions3 differ
Operating temperature (T-T)Differs	-10 - 80 °C	0 - 70 °C
Storage temperature (T-T)Differs	-20 - 100 °C	-25 - 70 °C
Operating relative humidity (H-H)Differs	5 - 85%	15 - 90%
System requirementsidentical
Windows operating systems supportedKnown for one	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterpris	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Server operating systems supportedKnown for one	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016	Unknown — not stated by the source
Supported storage drive heightsKnown for one	Unknown — not stated by the source	22 mm
Technical detailsidentical
Compliance certificates	RoHS	RoHS
Weight & dimensions4 differ
WidthDiffers	67 mm	16 mm
DepthDiffers	98 mm	159 mm
HeightDiffers	18 mm	69 mm
WeightDiffers	55.6 g	88 g
Packaging data4 differ
Quantity	1	1
Mounting brackets included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthDiffers	144 mm	158 mm
Package depthDiffers	175 mm	219 mm
Package heightDiffers	33 mm	49 mm
Package weightDiffers	146.4 g	157 g
Screws includedKnown for one	Unknown — not stated by the source	Yes
User guideKnown for one	Unknown — not stated by the source	Yes
Logistics data4 differ
Harmonized System (HS) code	84733020	84733020
Products per master (outer) caseDiffers	75 pc(s)	40 pc(s)
Master (outer) case widthDiffers	693 mm	342 mm
Master (outer) case lengthDiffers	360 mm	468 mm
Master (outer) case heightDiffers	338 mm	498 mm

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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